// 热力图假数据，照这个形式来进行传输就行
heatData = {
    type: 'FeatureCollection',
    features: [
        {
            type: 'Point', 'coordinates': [
                120.36293,
                23.53477
            ], count: 100
        },
        {
            type: 'Point', 'coordinates': [
                120.45631,
                23.76611
            ], count: 19
        },
        {
            type: 'Point', 'coordinates': [
                120.78590,
                23.51464
            ], count: 419
        },
        {
            type: 'Point', 'coordinates': [
                121.58241,
                25.06584
            ], count: 319
        },
        {
            type: 'Point', 'coordinates': [
                120.3903,
                22.73204
            ], count: 719
        },
        {
            type: 'Point', 'coordinates': [
                121.09901,
                22.80292
            ], count: 519
        },
        {
            type: 'Point', 'coordinates': [
                120.22011,
                23.10624
            ], count: 319
        },
        {
            type: 'Point', 'coordinates': [
                120.67604,
                24.26258
            ], count: 139
        },
        {
            type: 'Point', 'coordinates': [
                121.56593,
                24.01208
            ], count: 129
        },
    ]
}